tdesktop/Telegram/SourceFiles/ui/animation.cpp

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/*
This file is part of Telegram Desktop,
the official desktop application for the Telegram messaging service.
For license and copyright information please follow this link:
https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
*/
#include "animation.h"
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#include "media/media_clip_reader.h"
namespace Media {
namespace Clip {
Reader *const ReaderPointer::BadPointer = SharedMemoryLocation<Reader, 0>();
ReaderPointer::~ReaderPointer() {
if (valid()) {
delete _pointer;
}
_pointer = nullptr;
}
} // namespace Clip
} // namespace Media
namespace {
AnimationManager *_manager = nullptr;
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bool AnimationsDisabled = false;
} // namespace
namespace anim {
transition linear = [](const float64 &delta, const float64 &dt) {
return delta * dt;
};
transition sineInOut = [](const float64 &delta, const float64 &dt) {
return -(delta / 2) * (cos(M_PI * dt) - 1);
};
transition halfSine = [](const float64 &delta, const float64 &dt) {
return delta * sin(M_PI * dt / 2);
};
transition easeOutBack = [](const float64 &delta, const float64 &dt) {
static constexpr auto s = 1.70158;
const float64 t = dt - 1;
return delta * (t * t * ((s + 1) * t + s) + 1);
};
transition easeInCirc = [](const float64 &delta, const float64 &dt) {
return -delta * (sqrt(1 - dt * dt) - 1);
};
transition easeOutCirc = [](const float64 &delta, const float64 &dt) {
const float64 t = dt - 1;
return delta * sqrt(1 - t * t);
};
transition easeInCubic = [](const float64 &delta, const float64 &dt) {
return delta * dt * dt * dt;
};
transition easeOutCubic = [](const float64 &delta, const float64 &dt) {
const float64 t = dt - 1;
return delta * (t * t * t + 1);
};
transition easeInQuint = [](const float64 &delta, const float64 &dt) {
const float64 t2 = dt * dt;
return delta * t2 * t2 * dt;
};
transition easeOutQuint = [](const float64 &delta, const float64 &dt) {
const float64 t = dt - 1, t2 = t * t;
return delta * (t2 * t2 * t + 1);
};
void startManager() {
stopManager();
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_manager = new AnimationManager();
}
void stopManager() {
delete _manager;
_manager = nullptr;
Media::Clip::Finish();
}
void registerClipManager(not_null<Media::Clip::Manager*> manager) {
Expects(_manager != nullptr);
_manager->registerClip(manager);
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}
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bool Disabled() {
return AnimationsDisabled;
}
void SetDisabled(bool disabled) {
AnimationsDisabled = disabled;
if (disabled && _manager) {
_manager->step();
}
}
void DrawStaticLoading(
QPainter &p,
QRectF rect,
int stroke,
QPen pen,
QBrush brush) {
PainterHighQualityEnabler hq(p);
p.setBrush(brush);
pen.setWidthF(stroke);
pen.setCapStyle(Qt::RoundCap);
pen.setJoinStyle(Qt::RoundJoin);
p.setPen(pen);
p.drawEllipse(rect);
const auto center = rect.center();
const auto first = QPointF(center.x(), rect.y() + 1.5 * stroke);
const auto delta = center.y() - first.y();
const auto second = QPointF(center.x() + delta * 2 / 3., center.y());
if (delta > 0) {
QPainterPath path;
path.moveTo(first);
path.lineTo(center);
path.lineTo(second);
p.drawPath(path);
}
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}
} // anim
void BasicAnimation::start() {
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if (!_manager) return;
_callbacks.start();
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_manager->start(this);
_animating = true;
}
void BasicAnimation::stop() {
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if (!_manager) return;
_animating = false;
_manager->stop(this);
}
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AnimationManager::AnimationManager() : _timer(this) {
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_timer.setSingleShot(false);
connect(&_timer, &QTimer::timeout, this, &AnimationManager::step);
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}
void AnimationManager::start(BasicAnimation *obj) {
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if (_iterating) {
_starting.insert(obj);
if (!_stopping.empty()) {
_stopping.erase(obj);
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}
} else {
if (_objects.empty()) {
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_timer.start(AnimationTimerDelta);
}
_objects.insert(obj);
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}
}
void AnimationManager::stop(BasicAnimation *obj) {
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if (_iterating) {
_stopping.insert(obj);
if (!_starting.empty()) {
_starting.erase(obj);
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}
} else {
auto i = _objects.find(obj);
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if (i != _objects.cend()) {
_objects.erase(i);
if (_objects.empty()) {
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_timer.stop();
}
}
}
}
void AnimationManager::registerClip(not_null<Media::Clip::Manager*> clip) {
connect(
clip,
&Media::Clip::Manager::callback,
this,
&AnimationManager::clipCallback);
}
void AnimationManager::step() {
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_iterating = true;
const auto ms = getms();
for (const auto object : _objects) {
if (!_stopping.contains(object)) {
object->step(ms, true);
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}
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}
_iterating = false;
if (!_starting.empty()) {
for (const auto object : _starting) {
_objects.emplace(object);
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}
_starting.clear();
}
if (!_stopping.empty()) {
for (const auto object : _stopping) {
_objects.erase(object);
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}
_stopping.clear();
}
if (_objects.empty()) {
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_timer.stop();
}
}
void AnimationManager::clipCallback(
Media::Clip::Reader *reader,
qint32 threadIndex,
qint32 notification) {
Media::Clip::Reader::callback(
reader,
threadIndex,
Media::Clip::Notification(notification));
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}
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